Chaeles e



(No Model.)

r O. F. PEEBLES.

ROCK DRILLING MACHINE. No. 331,435. Patented Dec. 1, 1885.

WITNESSES I l I I l/flf r01? UNITED STATES PATENT OFFICE.

CHARLES F. PEEBLES, OF BEREA, OHIO.

ROCK-DRILLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 331,435, dated December 1, 1885.

Application filed July 31, 1885.

To all whom it may concern:

Be it known that I, CHARLES F. PEEBLEs, of Berea, in the county of Ouyahoga and State of Ohio have invented certain new and useful Improvements in Carrying Apparatus for Drilling-Machines; and I do hereby declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to carrying attachments for drilling-machines; and it consists in certain features of construction and in combination of parts, hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a v1ew in perspective of a drilling-machine wish my improvement attached. The drill mechanism is not shown, as my improvement relates only to the drilling attachment. Figs. 2 and 3 are end elevations, the one showing the drilling-machine elevated, and the other showing the machine depressed or resting on 1ts legs. Figs. 4., 5, and 6 are details more fully hereinafter described. A represents aheavyiron beam, or so-called quarry-bar, to which a steam drill (not shown) is attached and moved along endwise on the bar to drill holes along the line of. the bar. To the ends of the quarry-bar are attached the cross-bars A, and at the ends of the cross-bars are attached the legs B for supporting the machine.

The machine is necessarily very heavy, and when a row of holes along the line of the quarry-bar have been drilled,and the machine has to be moved, usually eight or ten men are requlred for the moving. Ihave therefore devised means for elevating the machine on casters, so that two men can elevate and move the machine.

My improvements are as follows:

0 are heavy casters mounted, respectively, on the lower and vertical portion of the legs B, in condition to revolve or slide endwise on the respective legs. The wheels 0 of the casters should be of considerable size-say eight or ten inches (more or less) in diameter-on account of the uneven surface of the rock floor. The upper end of the caster-socket has a laterally-projecting annular flange, 0. Next above Serial No. 173,138. (No model.)

the caster is the sleeve D, mounted loosely on the legs B, with cars at between, and to which is secured the push-bar E by means of a bolt, d. The lower end of the bar E at e is made to hook under the flange c.

B are heavy cross-bars that connect, respectively,each pair of legs B, and are securely fastened to the legs. Apair of levers,respectively F and F, are pivoted at b to each of the cross-bars B. The end of one lever is preferably made forked to embrace the end of the other lever, (see Fig. 8,) and the two ends are connected by a bolt, f, that passes through an elongated hole, f, in one of the levers, by means of which the jointed end of the levers may move freely a limited distance in a Vertical direction, more or less, according to the length of the hole f. The outer end of the levers F and F are pivoted, respectively, to a push-bar, E. A laterally-projecting stud, g, is secured to the bar B, and on this stud is mounted the eccentric Gin position to engage the upper edge of the lever F some distance outside of the fulcrum b. The eccentric is provided with the lever H, for operating the eccentric, and an eccentric-stop, I, is secured to the lever F in position to engage the top of the eccentric. By turning down the eccentric the outer end of the lever F is depressed, and by means of the connections already shown between the levers F and F the outer end of the latter is also depressed, as is also depressed the push-bar E, connected with these levers, and the sleeves D, connected with the push-bar. The sleeves D depress the casters, andwhen the latter reach the floor the reactive force of the levers F and F elevate the machine, the legs B of course sliding up through the socket of the casters. hen the two ends of the machine have been thus elevated, the machine is easily moved on the casters, the labor of two men usually being ample for this purpose. The eccentric is turned upon its lower deadcenter, so that the levers are held depressed without other fastenings.

When the machine has been moved and placed as desired, the eccentric is reversed, and by its engagement with the eccentric-stop I the levers and push-bars are elevated, and by means of the hook ends of the push-bars engaging the flanges of the casters the latter are also elevated, and the machine is again allowed to rest upon its legs B.

What I claim is 1. In drilling machine attachments, the combination, with casters having sleeves or sockets which embrace the legs of the machine and adapted to revolve or slide endwise on the legs, of levers arranged in pairs and fulcrumed to the machine, eccentrics for operating the levers, and'suitable connecting mechanism, substantially as indicated, for elevating the machine and depressing the casters, or vice versa, by the action of the eccentrics, substantially as set forth.

2. In drilling machine attachments, the

- combination,with the legs of the machine,casters having sleeves or sockets embracing the legs and adapted to revolve and slide on the legs, sleeves and push-bars for operating the casters, and arranged substantially as indicated, of levers arranged in pairs and pivoted to the machine, and pivoted, respectively, to

the push-bars, said levers engaging each other, so that the pair of levers move in unison, and eccentrics arranged to elevate or depress the levers, substantially as set forth.

3. In drilling machine attachments, the combination, with a leg of the machine, of a caster mounted thereon in condition to revolve or slide endwise on the leg, a sleeve mounted on the leg above the caster and in contact with the latter, a push-bar secured to the sleeve and arranged to engage a flange of the caster to elevate the latter, means, substantially as indicated, to operate the push-bar, and arranged to depress the caster and elevate the machine, or vice versa, substantially as set forth.

In testimony whereof I sign this specification, in the presence of two witnesses, this 25th day of July, 1885.. 7

CHARLES F. PEEBLES. Witnesses:

G. A. HUBBARD, D. WV. HARNETT. 

